adpcm: use VLC_TS_INVALID (refs #3135)

diff --git a/modules/codec/adpcm.c b/modules/codec/adpcm.c
index 0b26e0089ee14fc7bcdbe65c3d8b3ffcc916c867..62fab84804b85f2c24c76935fc930beb24542380 100644 (file)
--- a/modules/codec/adpcm.c
+++ b/modules/codec/adpcm.c
@@ -274,7 +274,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 
     p_block = *pp_block;
 
-    if( p_block->i_pts != 0 &&
+    if( p_block->i_pts > VLC_TS_INVALID &&
         p_block->i_pts != date_Get( &p_sys->end_date ) )
     {
         date_Set( &p_sys->end_date, p_block->i_pts );
@@ -287,7 +287,7 @@ static aout_buffer_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
     }
 
     /* Don't re-use the same pts twice */
-    p_block->i_pts = 0;
+    p_block->i_pts = VLC_TS_INVALID;
 
     if( p_block->i_buffer >= p_sys->i_block )
     {